Jump to content

Recommended Posts

redleaf101

I hadn't blogged in a while, but here's my latest excursion (I have more but I'll have to dig up the information, and some are still pending field work/research)

 

On July 5th I went for a drive down Beaumont, in the Memramcook region in South-Eastern New Brunswick (Canada), to check how bad the road along the coast had eroded with time since the last time I went down there rock picking. I stopped in a few places to check on the rocks down the beach wherever I could go down, and spotted the cliffs of Dorchester Cape across the Memramcook river. Hopped in the car and proceeded to make the short few kilometers trek to the other side.

 

dorchester%2Bcape1.jpg

Location indicator shows Dorchester Cape on the map (Google Maps)

 

dorchester%2Bcape2.jpg

Location of the cliffs

 

The geology of the area is mostly formed of Upper Carboniferous rocks, and the location I was at is mostly Boss Point formation. The Boss Point formation is also found in Cape Enrage, Rockport, and Upper Joggins, to name a few places. The fossils that I find at the Dorchester Cape site is mostly discombobulate plant material, with dark grey to tan sandstones with some sandy conglomerate boulders lying about. Chunks of gypsum and some Albertite can be seen on the beach, as evaporites abound in the Albert Mines area, and some other unspecified locations in the Memramcook area. Albertite, and then gypsum, were an important part of the local economy, especially in Hillsborough across the river, as the geology of the surrounding area sees large deposits of various evaporites, a relic of the ancient Windsor Sea which would have receeded, giving way to vast forests and rivers.

 

But what was most important for Dorchester Cape was the copper found in the sedimentary rocks. This copper ore, chalcocite, was discovered in the late 1860s and mined until all operations came to a stop before the First Great War.

 

copper%2Bore1.jpg

Dorchester Copper Mine. K. Vanderwolf. New Brunswick Museum.

 

 

From Memramcook, I drove down the 106 towards Dorchester. Once in the village, you take the 935, which is Cape Road, heading towards Dorchester Cape. The road turns into a dirt road about 2 clicks after the train tracks. Turn into the dirt road across the Atlantic Industries Limited business site. Make your way down the road, avoiding pot holes and man made roadblocks, and you'll eventually reach the old wharf.

 

1.jpg

Make your way South (left of the wharf) and head towards the cliffs near Cole Point.

 

2.jpg

 

 

3.jpg

Looking back, view of Fort Folly Point slicing Shepody Bay.

 

As we get closer to the rock cliffs, you can already spot coal and petrified wood on the beach.

 

4.jpg

 

The plant fossils are mostly fragmented, showing signs of turbulence. There's some micro faulting in some places, and large sections of the cliffs are coming down in large segments.

 

5.jpg

 

6.jpg

Plastered with plants/tree parts (hat for scale)

 

 

7.jpg

 

The beach is littered with petrified wood, plant fossils, and chunks of coal.

 

8.jpg

Middle section replaced with orange calcite crystals

 

 

9.jpg

Some pieces are quite large (dirty hat for scale)

 

 

10.jpg

Common theme: plants sticking out to catch some Sun

 

 

11.jpg

 

12.jpg

One of the few holes where trees used to lie in situ

 

 

13.jpg

 

14.jpg

 

15.jpg

 

16.jpg

 

The cliffs have coal seams that can reach a few inches thick.

 

17.jpg

 

18.jpg

 

19.jpg

Tree imprint

 

 

20.jpg

 

21.jpg

 

22.jpg

 

23.jpg

Nice tree sticking out (squished hat for scale)

 

 

24.jpg

 

25.jpg

 

26.jpg

Close to the tree

 

 

27.jpg

NOT sand (chances of lithification?)

Share this post


Link to post
Share on other sites
belemniten

Beautiful pictures :wub:

Thanks for sharing!

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Recently Browsing   0 members

    No registered users viewing this page.

×